Means for treating materials



Jan. 4 '927.

H. G. LYKKEN MEANS FOR TREATING MATERILS vw Nw mw Nm- ,I'IIIIIIIIIIIIIIIIIII IIII I Il.' n 1 A wwf NN ,J hw Qw RQ mw ,m M

Filed July 12 1925 @MM vfu.

Patented' Jan. 4,1927; j

-UNITED STATES PATENT. OFFICE.

HENRY G. LYKKEN, OF MINNEAPOLIS, MINNESOTA. i

MEANS C FOB TREATING. MATERIALS.

Application led July 12, 1923. Serial No. 651,020. Y

' This invention relates to means for drying materials and comprises among its o jects to improve -upon present means for drying objects, such as 'coal and other fuels; to provide an improved drying means, wherein hot air or gases which have heretofore been wasted are utilized for the drying ofl objects; to providea new type of apparatus for the utilization of hot air or other gases in the drying of materials whlch may .need to be so treated; to provide apparatus that this is illustrative only and not to be construed asa limitation of my invention. f

Referring more in detail to the drawing annexed hereto and forming a part hereof, Fig. 1 is a diagrammatic plan view ofa construction illustrating my invention; Fig. 2

is a section, more or less'diagrammatic, of

the construction shown 4in Fig. 1; Fig. is a transverse section of the constructlon shown in Figs. 1 and 2; and 4 is a broken side view of the conveyor and heating or cooling chambers.

In detail, numeral 1 designates suitable apparatus, such as a fan blower, for feeding cold air to a duct section 3, while numeral 2 designates a similar apparatus for feeding hot air or other gases to a ductsection 4, these two sections forming one continuous duct divided by a movable partition 5 which may be inserted at any convenient place so as to vary the relative lengths of the two duct sections 3 and 4. The hot gas is supplied-'to the force feedin means 2 in any suitable manner, such 1s y a duct 6 leading from a source of hot air or other gases.

Upon opposite sides of the duct sections 3 and 4 are arranged channels, through which run endless conveyors 9 and 10, with upper and lower runs, such thatthe upper runs of said conveyors carry the materials to be dried, from the hoppers 11 and 12.

' By this means, the material being dried may erally be carried forwardly, progressively, from the receivmg means 11 and 12 and deposited at 13 and 14 in a dried condition, having,

during its progress, passed over a series of compartments 15 and'16, the former being supplied with a hot gas through the duct section 4 and the latter with cold air through the duct section 3. Gates 18 located in theA sections 3 and .4 may be adjusted to regulate the amount of air or other gas admitted to the compartments 15 and 16, through the port 15 at intervals in the sidewalls 3 of the duct sections 3 and 4. The series of chambers 15 and 16 have outer side Walls 19 between which and the side walls 3 operate the endless lconveyors and between v which are also located transverse walls 7 and 8, referably of sheet metal, having latnt top flanges 20. 'The flanges 20 are located as near as ossible tothe bot- -tom of the upper run ci) the conveyor so' as to tolerably shut otf ow of heating or cooling medium from one chamber or compartment to an adjacent chamber or compartment. The ends of the walls 7 and 8 may be respectively secured in any suitable manner to the side walls 19 and`3, as b angle bars or irons 21 arranged substantiaily vertically as shown in the figures of the drawings. The lowerend 22 of each wall 7 and 8 terminate above the lower or return run of the conveyor. To the side walls 19 and 3 are also secured tracks 23, 24, 25 and 26 running longitudinally of saidfwalls 3 and 19 and upon'which ride or run the side chains or rollers 27 and 28 of the side chains. Material 29 is supported upon the upper run of the conveyor and 'has lateral side guards 30 and 31 secured to vthe side Walls 3 and 19. The side walls 19 may have' angle pieces 32 to support the same on they foundation 33. .'Above the upper runs of the conveyors are arrangedstirring elements or ploug s 17 supported from rods 34 adjustably connected, asby nuts 34 to cross bars 35 fastened at their ends by angle pieces 36 and '37 te the side walls 3- and 19 extended.

. compartments and 16 and upwardly through the upper runs of the conveyors and through the material carried thereby. rlhe conveyors are of such construction as to readily hold the material for treatment without danger of the material falling through the conveyor, and to permit the u ward pas.- sage of the heating or cooling me ia through the conveyors and the materials th eupon.

It will be understood, of course, at the hot air or other gases supplied to the duct 4 may be produced in any desired manner, it being most economical to use waste heat from some other operation, but, if desired, the heat can be furnished from a heater operated for the purpose of furnishing the same. Also, it will be understood that the thickness of the material on the moving conveyor may be adjusted and regulated as desired, the same being preferably done where the material issues` from the hoppers 1l and 12. The dryer may be built in any desired number of units, made of any desired widths and lengths to suit the material being dried and may contain any desired number of compartments 7 and` 8, the air or other gas being supplied to any desired number of these compartments to attain the desired results.

herein a more or less specicembodiment of my invention, 1 desire the Sametobe understoody as illustrative only and not as limiting said' invention.

Having now described my invention, I

1. A material treating device com rising a porous conveyorby which materia to be treated may be carried, means Afor causing a passage ofa treating medium through said conveyor. and the material thereon, said means comprising a series of chambers located below said conveyor and being provided with open tops for the upward passage of the medium from each of said chambers to and through saidlconveyor and the material carried thereby, and a supply duct adjacent. said chambers and havin ports laterall communicating with said for t e passage of said medium through said ports from said duct to said chambers.

2. A material treating device comprisin Aa porous oconveyor by which material to be treated may be carried, means for causing a passage of a treating medium through Vsaid conveyor and the material thereon, said means comprising a series of chambers located below said conveyor and bemg providvided with open tops for the upwar .sage of the medium from each of said chambers ofthe medium from each of said chambers to and through said conveyor and thematerial carried-thereby, a supply duct adjacent said chambers and having ports laterally communicating with said chambers for the passage of said medium through said ports from said duct to said chambers, and

means fprregulating the rate of passage of said medium through said ports.

3. A material treating device com rising a porous conveyor by which materia to be treated may be carried, means for causin a passage of a treating medium throu said conveyor and the material thereon, sald means comprising a series of chambers located below said conveyor and being provided With open tops for the upward passage of the medium from each of said chambers toand through said conveyor and the material carried thereby, a supply duct adjacent said chambers and having ports laterally commnicating with said chambers for the passage of said medium through said ports from said duct to said chambers, and means for dividing said ducts into sections whereby a medium of one kind may be supplied in one of said sections for passage to the chambers in communication with said section of said duct and a medium of another kin-d may be supplied in another of said sections for passage to the chambers in com? municat'ion with said last mentioned section.

4. A material treating device comprising a porous conveyor by which material to be Y treated may be carried, means for causing a While I have illustrated and described passage of a treating medium through said conveyor and the material thereon, said means: comprising a seriesof chambers located below said conveyor and be' prochambers to and through said conveyor and the material carried thereby, a supply duct adjacent said chambers and having ports laterally communicating withv said chambers for the passage of said medium through said ports from said duct to said chambers, means ed with open tops for the upward passage for dividing said duct into sectionswhereby a medium of one kind may be supplied in one of said sections .for passage to the chambers in communication with said section of said duct, and' amedium of another kind may be supplied in another of said sections for passage to the chambers in communication with said last mentioned section, and

means for regulating the rate of passageof said medium through said ports. 4

- 5'. A material treating device comprising a porous conveyor by which material to be treated may be carried, means for causing a passage of a treating medium through said conveyor and the material thereon, said means comprising a series of chambers located below said conveyor and being provided with open tops for the upward passage of the medium from each of said chambers to and through said conveyor and the material carried thereby, a supply duct adjacent said chambers and havin ports laterally communicating with said chambers for the passage of said medium through said ports. from said duct to said chambers, and mixing elements located above said conveyor and in the path of\said material whereby the latter may be carried thereagainst and be stirred and mixed.

6. A material treating device, comprising a medium supply duct, a series of chambers located on each side of said duct, said duct having openings into said chambers, said chambers being open at the tops thereof, and a conveyor passing over the top@ of said chambers in each of said series of chambers. 7. A material treating device, comprising a medium supp y duct, a series of chambers located on eac -side of said duct, said duct having openings into saidchambers, said chambers being open at the tops thereof, a

conveyor passing over the tops of said chambers in each of said series of chambers, and control gates at each of saidv openings between said duct and said chambers for regulating the passage of the medium from said duct to said chambers.

8. A material treating device, comprising a medium supply duct, a series of chambers located on each side of said duct, said duct having openings into said chamber, said chamber being open at the tops thereof, a conveyor passin over the tops lof said chambers in each o said series of chambers, a blower at each end of said duct, and means for selectively dividing said duct into' sections whereby the blower at one end of the duct may supply one kind of medium to oneof said sections and the blower at the other end of sai-d duct may supply another kind of medium toanother of said sections.

In witness whereof, I hereunto subscribe 4b my name to this specification.

.HENRY Gr. LYKKEN. 

